third_party/WebKit/Source/core/paint/ThemePainter.h

   1 /*
   2  * This file is part of the theme implementation for form controls in WebCore.
   3  *
   4  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Computer, Inc.
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Library General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Library General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Library General Public License
  17  * along with this library; see the file COPYING.LIB.  If not, write to
  18  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  19  * Boston, MA 02110-1301, USA.
  20  *
  21  */
  22
  23 #ifndef ThemePainter_h
  24 #define ThemePainter_h
  25
  26 #include "platform/ThemeTypes.h"
  27 #include "wtf/Allocator.h"
  28
  29 namespace blink {
  30
  31 class IntRect;
  32 class LayoutObject;
  33
  34 struct PaintInfo;
  35
  36 class ThemePainter {
  37     DISALLOW_ALLOCATION();
  38 public:
  39     // This method is called to paint the widget as a background of the LayoutObject.  A widget's foreground, e.g., the
  40     // text of a button, is always rendered by the engine itself.  The boolean return value indicates
  41     // whether the CSS border/background should also be painted.
  42     bool paint(LayoutObject*, const PaintInfo&, const IntRect&);
  43     bool paintBorderOnly(LayoutObject*, const PaintInfo&, const IntRect&);
  44     bool paintDecorations(LayoutObject*, const PaintInfo&, const IntRect&);
  45
  46     virtual bool paintCapsLockIndicator(LayoutObject*, const PaintInfo&, const IntRect&) { return 0; }
  47     void paintSliderTicks(LayoutObject*, const PaintInfo&, const IntRect&);
  48
  49 protected:
  50 #if !USE(NEW_THEME)
  51     virtual bool paintCheckbox(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
  52     virtual bool paintRadio(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
  53     virtual bool paintButton(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
  54     virtual bool paintInnerSpinButton(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
  55 #endif
  56
  57     virtual bool paintTextField(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
  58     virtual bool paintTextArea(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
  59     virtual bool paintMenuList(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
  60     virtual bool paintMenuListButton(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
  61     virtual bool paintMeter(LayoutObject*, const PaintInfo&, const IntRect&);
  62     virtual bool paintProgressBar(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
  63     virtual bool paintSliderTrack(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
  64     virtual bool paintSliderThumb(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
  65     virtual bool paintSearchField(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
  66     virtual bool paintSearchFieldCancelButton(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
  67     virtual bool paintSearchFieldDecoration(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
  68     virtual bool paintSearchFieldResultsDecoration(LayoutObject*, const PaintInfo&, const IntRect&) { return true; }
  69
  70     bool paintUsingFallbackTheme(LayoutObject*, const PaintInfo&, const IntRect&);
  71     bool paintCheckboxUsingFallbackTheme(LayoutObject*, const PaintInfo&, const IntRect&);
  72     bool paintRadioUsingFallbackTheme(LayoutObject*, const PaintInfo&, const IntRect&);
  73 };
  74
  75 } // namespace blink
  76
  77 #endif // ThemePainter_h